2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 * Purpose: Implement functions to access baseband
24 * Author: Yiching Chen
34 #include <linux/compiler.h>
38 #define FIRMWARE_VERSION 0x133 /* version 1.51 */
39 #define FIRMWARE_NAME "vntwusb.fw"
41 #define FIRMWARE_CHUNK_SIZE 0x400
43 int vnt_download_firmware(struct vnt_private *priv)
45 struct device *dev = &priv->usb->dev;
46 const struct firmware *fw;
53 dev_dbg(dev, "---->Download firmware\n");
55 rc = request_firmware(&fw, FIRMWARE_NAME, dev);
57 dev_err(dev, "firmware file %s request failed (%d)\n",
62 buffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
66 for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
67 length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
68 memcpy(buffer, fw->data + ii, length);
70 status = vnt_control_out(priv,
77 dev_dbg(dev, "Download firmware...%d %zu\n", ii, fw->size);
79 if (status != STATUS_SUCCESS)
92 MODULE_FIRMWARE(FIRMWARE_NAME);
94 int vnt_firmware_branch_to_sram(struct vnt_private *priv)
98 dev_dbg(&priv->usb->dev, "---->Branch to Sram\n");
100 status = vnt_control_out(priv,
106 if (status != STATUS_SUCCESS)
111 int vnt_check_firmware_version(struct vnt_private *priv)
115 status = vnt_control_in(priv,
118 MESSAGE_REQUEST_VERSION,
120 (u8 *)&priv->firmware_version);
122 dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n",
123 priv->firmware_version);
125 if (status != STATUS_SUCCESS) {
126 dev_dbg(&priv->usb->dev, "Firmware Invalid.\n");
129 if (priv->firmware_version == 0xFFFF) {
130 dev_dbg(&priv->usb->dev, "In Loader.\n");
134 dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n",
135 priv->firmware_version);
137 if (priv->firmware_version < FIRMWARE_VERSION) {
138 /* branch to loader for download new firmware */
139 vnt_firmware_branch_to_sram(priv);